<template>
  <div class="app-container">
    <el-table v-loading="loading" :data="reviewList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="老师姓名" align="center" prop="name"/>
      <el-table-column label="评分" align="center" prop="fraction"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="del(scope.row)"
          >评分
          </el-button>
        </template>
      </el-table-column>
    </el-table>
    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="老师姓名" prop="name">
          <el-input v-model="form.name" placeholder="请输入老师姓名" :disabled="true"/>
        </el-form-item>
        <el-form-item label="评分" prop="fraction">
          <el-input v-model="form.fraction" placeholder="请输入老师姓名" type="number"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listReview, delReview, addReview, updateReview } from '@/api/system/review'

export default {
  name: 'Grade',
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 学生评分表格数据
      reviewList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        fraction: null,
        name: null
      },
      // 表单参数
      form: {
        id: '',
        name: '',
        fraction: 0
      },
      // 表单校验
      rules: {}
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询学生评分列表 */
    getList() {
      this.loading = true
      listReview(this.queryParams).then(response => {
        this.reviewList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        fraction: null,
        name: null
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset()
      this.open = true
      this.title = '添加学生评分'
    },
    /** 修改按钮操作 */
    del(row) {
      for (let p in this.form) {
        this.form[p] = row[p]
        console.log(row)
      }
      this.open = true
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateReview(this.form).then(response => {
              this.$modal.msgSuccess('评分成功')
              this.open = false
              this.getList()
            })
          } else {
            addReview(this.form).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除学生评分编号为"' + ids + '"的数据项？').then(function() {
        return delReview(ids)
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/review/export', {
        ...this.queryParams
      }, `review_${new Date().getTime()}.xlsx`)
    }
  }
}
</script>
